Home / 128,068.37-192,237.83-71,956.43

Finding the Fourth Proportional to 128,068.37, 192,237.83 and 71,956.43

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Solution

The fourth proportional to 128,068.37, 192,237.83 and 71,956.43 is: 108,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,068.37 : 192,237.83 = 71,956.43 : x
  2. Step 2: Convert to fraction form
    128,068.37/192,237.83 = 71,956.43/x
  3. Step 3: Cross multiply
    128,068.37x = 192,237.83 × 71,956.43
  4. Step 4: Simplify right side
    128,068.37x = 13,832,747,957.75
  5. Step 5: Solve for x
    x = 13,832,747,957.75/128,068.37
  6. Step 6: Final answer
    x = 108,010.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.